Sanding device for automobiles



March 13, 1945. G, W OLD 2,371,274

SANDING DEVICE FOR AUTOMOBILES Filed Aug. 19, 1942 2 Sheets-Sheet 1 r m M INVENTOR March 13, 1945. w. G. WEIGOLD SANDING DEVICE FOR AUTOMOBILES 2 Sheets-Sheet 2 Filed Aug. 19, 1942 ATI'ORNEY Patented Mar. 13, 1945 a UNITED STATES" PATENT OFFICE Y v, 2,371,274 SANDING DEVICE. FOR AUTOMOBILES Warren Weigold, Hawthorne, N. Y. 7 Application August is, 1942, Serial No. 455,276

' 2 Claims.

This invention relates to improvements in sanding devices for automobiles.

One of the objects ofthis inventlonis, in sanding mechanism for automobiles, to utilize the heat of the exhaust gases in a combined mufller and sand reservoir in such manner as to retain the sand in such reservoir in a dry,'flowable condition. l

Another object of my invention is to utilize such heat to similarly heat or warm and keep in dry and fiowable condition the sand within discharge conduits leading from the reservoir to the discharge outlet and to protect and maintain the sand in said condition .till the discharge of the sand from such conduits. I

' 'Another object of my invention is, in a device of the character specified, to provide in a sanding device a sand-reservoir compartment that will be centrallylocated in a suitable combined muf-' fler and sanding device and hot gas passages will extend peripherally around the same to protect and maintain the sand in such reservoir in warm, dry and flowable condition.

Another object of my invention is, in a device of the character specified, to provide a heating arrangement of theexhaust-gas passages for the sand reservoir and discharge conduits that will retain the sand in such dry and flowa'ble condition as to permit a gravity feed thereof. Another object of my invention is, in a device of the character described, to provide a'construc tion in which a centrally-located sand-reservoir compartment and discharge conduits leading therefrom will be protected on all sides from weather and atmospheric conditions by peripheral gas passages so that the sand therein will always be available in dry condition for immediate feeding by gravity to the point of desired application.

With these and other objects in view, the invention comprises the combination of members and arrangement of parts so combined as to co-act and co-operate with each other in the performance of the functions and the accomplishment of the results herein contemplated, and comprises in one of its adaptations the species or preferred form illustrated in the accompanyins drawings, in which:

Fig. 1 is a view in plan of an automobile chassis showing an arrangement of my combined mumer and sanding device composed of two sandin boxes applied thereto;

Fig. 2 is a view'in side elevation of said chassis with my combined muiller and sanding device illustrated in Fig. l;

Fig. 3 is a view in plan of one of my exhaustgas-heated sanding boxes such as shown in Figs.

looking in the direction of the arrow.

Fig. 5 is a section showing my sand discharge conduit enveloped in a heating conduit to retain the sand in the discharge conduit in dry and flowable condition.

Fig. 6 is a'section onthe line 6-6 of Fig. 5, looking in the direction of the arrows and showing one methodof operation of the valve mechanism to discharge sand.

In general terms, my invention comprises the provision of a combinedmufller and sanding device in which a sand-reservoir or compartment is positioned centrally within a suitable box or casing and exhaust passages of the gas mufiler are arranged to surround such sanding compartment over the entire periphery thereof to the end that the sand within said compartment will not only be heated so as to be kept warm, dry

and in a readily fiowable condition, but further more, will be at all times protected against freezing and from'moisture or dampness, and such a protected sand-reservoir compartment is preferably utilized in combination with a similarly protected discharge conduit comprising a centrallylocated discharge pipe arranged axially within a hot-gas heatingconduit spaced therefrom and forming a sleeve extending to a point adjacent to the discharge outlet, whereby all sand within the device will be maintained in such warm, dry and flowablacondition as to permit feeding of the same by gravity from the reservoir compartment to the discharge outlet.

Referring now to these drawings, which illustrate a preferred embodiment of my invention,-

my combined muflier and sand reservoir is more particularly shown in Fig. 4, and comprises an outside casing 10 having a centrally-located sandreservoir compartment ll provided with an inclined bottom l2, and suitably disposed end and side-walls I3. Said sand-reservoir compartment is spaced from the casing walls arranged to provide around the entire peripheral surface thereof hot-gas channels l4. These channels (4 completely surround the sand-reservoir compartment so as first, to protect the same from the atmosphere and weather and thus to prevent freezing or wetting, and second, to permit the heating of the sand by exhaust gases admitted to the outside compartment through a gas inlet pipe l-5. The

' space between the reservoir compartment thus forms an outer heating compartment and is prefany sound vibrations.

erably provided with a series of baflies I'B so that the exhaust gases will have a relatively-long heat-transferring travel and will be maintained in contact with the walls of the container for a relatively long time period and these passages and baiiles will also serve the iunctionof muflling I thus provide a hot-gas muflling compartment completely surrounding a centrally-located reservoir compartment and I provide for the said reservoir compartment a suitable sand inlet conduit H which passes through the mufller compartment.

In the preferred embodiment of my invention, the exhaust gases are first fed to an initial muflier compartment located or disposed beneath the forward end of the reservoir compartment, and the gases from this initial muffler compartment are distributed through and around channels surrounding the reservoir compartment, Which channels are preferably provided with said series of bafile plates I6 through and along which the gases are'intended to pass in their movement toward the outlet.

It will be seen that the reservoir compartment is thus in the, first place, protected by an outer layer of channels or compartments which,'even though unheated would assist in protecting the,

reservoir compartment from weather and second, that these channels are utilized to surround a compartment with exhaust gases for the purpose of heating the sand within the reservoir compartment and that the sand thus heated will be maintained in warm, dry and fiowable condition to permit the same to move or flow readily by gravity.

While it is desirable to maintain the sand in the reservoir compartment in flowable condition, it is also desirable to protect the'sand during its passage through discharge conduits and preferably to heat sand during such passage, and for this purpose I provide a discharge outlet extending from the reservoir compartment through the muillergas passages and I also surround this discharge conduit with heating conduit I8 extending substantially over the entire length of said discharge-conduit and being then connected with a gas-discharge pipe or conduit l9 having an outlet at any suitable point in the rear of the sand discharge outlet. Suitable valvemechanisms are employed for opening the discharge conduit to discharge sand therefrom to the place beneath the wheels of an automobile where sanding is dc.-v

sired, and in the construction shown I provide a spring-closed valve normally held in position by spring 2| and adapted to be moved outwardly against the action 01' the spring by manually actuated rod or chain 22.

Having described my invention, I claim:

1. A sanding device for automobiles embodying in combination, a casing mounted on the chassis of an automobile at the rear of and adjacent to the engine, a sand reservoir compartment located centrally within said casing and having its walls spaced from the walls of said casing to provide channels extending peripherally around Said reservoir compartment and between said central compartment and wall of said casing, a sand loading conduit extending through the wall of said casing and through said peripheral channels to said centrally located sand reservoir compartment, means for connecting the exhaust gas conduit of an automobile with the said peripheral channels, a rearwardly-extending conduit for discharging sand from said sand reservoir extending through said peripheral channels, a conduit for discharging the hot gases from said peripheral channels and mufller baffle-elements in said peri heral channels surrounding said sand-dis, char in conduit to baflle said h t g e 2,. A sanding device for automobiles embodying in q tio a casin mounted on the chass of an automobile at the rear of and adjacent to the engine, a sand reservoir compartment located centrally within said casing and having its walls spaced from the walls of said casing to provide channels extending peripherally around said reservoir compartment and between said central compartment and wall of said casing, a sand loading conduit extending through the wall of said casing and through said peripheral channels to I ripheral channels to bafile said hot gases, a rearweirdly-extending sand'conduit lea ing from. sa d san res rvoir compartment to a P nt adja ent to the wheel of an automobile, and a hot a con.- duit surroundin s i s d cond it nd adapted to keep the sand therein in warm conditi n, aid

. peripheral hot gas conduit communicating with a heat conduit extending from the end ofsaid combined sand and hot gas conduit to the rear end of the car,

WABREN G. WEIGOLD. 

